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Questions tagged [wiring]

For questions about the wiring of a car(apparatus that connects electrical circuits).

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0answers
56 views

Can a “switched” automove circuit be re-routed to power devices currently wired to an “always-on” circuit, all just in the fusebox?

The reason behind this question has been asked (and answered) countless times: How to make an automotive dashcam, that plugs into a 12V accessory socket, switch off when the engine is not running. (Or ...
1
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2answers
2k views

Wiring harness splicing - Soldering or Crimping Method

I need to rebuild the injector harness on an old vehicle using Y-splices on the wire to reduce cable usage/lengths (V12 engine). My question now is how to to the Y-splice on the wires. Soldering ...
3
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3answers
185 views

Ground Loop Fuel gauge

I just restored my car (1970 Datsun) and the only thing I can't get to work is the fuel gauge. I have a brand new gauge (just a fancy and expensive ohm meter really) that is correctly programmed. A ...
2
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2answers
2k views

Trouble connecting 16 pin car stereo power cable to Pioneer radio

A bit of a mystery to me (I'm new to this). I have a power cable in my car like this: The back of my new Pioneer stereo has a connector like this: Basically it doesn't fit (the plug does not have ...
4
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2answers
1k views

Wiring fog lamps with horn relay

I want to install fog lamp on my Maruti Suzuki alto 2009 model, but it did not came with any provisions for such modifications so I have to do it from scratch, the problem I am facing is that I cannot ...
2
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1answer
173 views

Intermittent Wiper Wiring Nomenclature

! I have drawn up a schematic using instructions and schematics from my car and components I am installing. My question is in regards to the gray wire at the left side pin 6 of the Rain & Light ...
2
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1answer
28 views

1955 Chrysler Windsor no response when I turn the key

I have had this car for a while and have had it running for a while but suddenly it stopped working. When I turn the key there is absolutely no response; no lights no clicks, no starter activity. The ...
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1answer
75 views

Wiring a switch in horn line for on/off operation

I have an '06 Ford Escape with a faulty door jamb (somewhere out of 4) that causes the alarm to go off at inopportune times, especially in the summer. I've learned it's an expensive and time ...
2
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0answers
525 views

Mercedes Axor wiring diagram

How can I find the wiring diagram for a mercedes axor truck? Specifically im looking for the wiring for the instrument panel. Can anyone help? Thanks
3
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1answer
256 views

Jump starter cable wiring

I have a 1986 Defender, ex-military. These have a so-called "inspection socket" (that's the name on the wiring diagram), which I believe are meant for jump starting. They have heavy gauge wires, and I ...
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0answers
38 views

73 F100 ignition

73 F100 Electronic distributor (no points) **NEED CORRECT WIRING FOR/TO EACH OF THESE DEVICES ** Ign switch (Blk w/grn, Yellow, Red, Pink & two Red w/grn - on one terminal ) ICM (2 + 4 w/Blue ...
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1answer
311 views

Starter solenoid breakdown

Triumph T100 motorcycle, starter solenoid clicks a lot and doesn't turn motor enough, it would start after pressing starter button for a length of time but solenoid would then break. When my original ...
2
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0answers
121 views

connecting led halo lights on 2006 accord

I am installing Spyder projector LED halo headlights on a 2006 Honda Accord. Following the install instructions I twisted together the two red wires and black wires respectively from the LED halo ...
3
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1answer
91 views

Connect car amplifier and capacitor

I try to connect my car battery, amplifier and capacitor. I had to rearrange the position of the amplifier and the capacitor, and because of this I have not enough cable left. Before it was connected ...
6
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2answers
592 views

Trailer AFC converter turn signals blink together

I have a Nissan Murano 2009 (made in Japan for US market). I installed a trailer towing hitch and now I want to install a towing harness. Since I live in Europe I bought Brink Wiring Kit (732614) ...
5
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2answers
1k views

What is the reason for hardwiring ground wires for cooling fan and a/c compressor?

I have a 2007 Mazda RX8 and am getting it ready for the hot summer weather. Put a new a/c compressor in only to find that it stays running whether or not the switch is on inside the car. This lead to ...
3
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1answer
2k views

How To Diagnose 3rd Brake Light (Without Proper Equipment)

I have a 2012 Ford Focus (sedan version). The third brake light stopped working recently and I'm trying to determine if the problem is with the light itself or inside the vehicle, but a I have very ...
2
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2answers
2k views

How do connect any rear door speaker to my sony aftermarket car stereo

I have a VW Polo 2003 1.2 and would like to add a speaker to each rear door. I am a complete newbie when it comes to electrical work in cars (actually in most things about cars other than the ...
2
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1answer
117 views

Fitting a MotoGadget V2 Unit on my motorbike

I have an older fuel injected motorbike (Ducati 2003 DS1000 SSie) which I would like to customise. I am planning on fitting a MotoGadget V2 Unit, to simplify the wiring. On this unit, there are in- ...
3
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2answers
1k views

ECU/PCM plug pinouts

I'm trying to find out which pins on a Bosch WE0718881B ECU (For a 2007 Mazda BT-50/Ford Ranger) go to the ECT sensor. I'm been looking for pinouts of the two plugs on the ECU but getting nowhere. ...
2
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2answers
52 views

My 99 Ford Mustang will not keep a charge on the battery. We have replaced the batter 3 times since last summer. What could be draining it?

I am looking for help. I have a 99 Ford Mustang v6 5speed. We have replaced the battery 3 times in the past 8 months and the battery is now dead again after replacing it less than a month ago. We ...
3
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1answer
1k views

Nissan Versa 2014 reverse light wire

I have a backup camera to set up, but checking which wires go to which light isn't easy since the bulbs are mounted onto a circuit board instead of visually being able to see where the wires go. Upon ...
3
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2answers
423 views

Front left speaker/tweeter back to life after high volume?

I drive a 2014 Corolla LE with around 20,300 miles. Noticed that my left front door speaker did not work. Also the front left door tweeter(attached to the door) emits a faint rendition of music ...
3
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1answer
103 views

One car speaker problem

Front driver speaker not working. The only thing I have to test it is a cheap lil 12v tester (1 with light in handle of a screw driver). Is it possible to test with this. When I ground the tester and ...
3
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1answer
4k views

Remove/Replace engine wiring harness on '02 VW Jetta TDI

I'm trying to figure out what's involved with removing and replacing the engine wiring harness on our '02 diesel Jetta. The harness appears to be available as a spare part and you can find them on ...
2
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0answers
147 views

VW Wiring Harness Repair / Replacement

I've got an '02 Jetta TDI (diesel) with ongoing problems (DTCs and low fuel economy) that seem related to the engine electrical system. The codes are all intermittent shorts to ground on various ...
2
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1answer
743 views

Rewiring Liebherr crane with magnet

I'm trying to replace the wires from the boom to connectors that go into the wiring harness and into the ground. The existing wire is 13 mm with a 2000 volt rating and the replacement my boss ordered ...
4
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2answers
1k views

4-way car connector to 7-way trailer connector

I bought a CURT custom wiring harness that plugs into vehicle tail light assembly to provide a 4-way flat socket. It has a simple plug & play design that eliminates the need for cutting and ...
7
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3answers
1k views

Can stock headlight wiring deal with 110 W bulbs?

My 2003 Opel Agila has 0.85 mm2 wiring for the entire headlamp circuits. I want to install higher wattage bulbs, up to 110 W. It takes H4 bulbs so the high and low beams are combined into ...
4
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3answers
4k views

What's wrong with using domestic flex cable for automotive purposes?

In the UK, household wiring uses 3-core flexible cables. Core size for some applications might be 2.5mm^2 and rated for 24a at 5.75kW at 240v. This means the cable exceeds the current draw of most ...
4
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2answers
2k views

DLC Pinout for SVX ECU

Below is the pinout for a 92 Subaru SVX Engine Control Unit (ECU). Since the wiring harness is no longer collocated with original car, I have no idea as to what the pinout for the Data Link ...
3
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1answer
311 views

Bike wont power up

I have a 2001 bandit 600, it ran fine till one day it died mid trip, started again but soon turned off again. Got it home jumped it ran for a few moments then died. The battery is new, and it cranked ...
4
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1answer
805 views

Suzuki Grand Vitara 2004 wiring

My dad and I just put in a new engine for my Suzuki Grand Vitara. We connected all the necessary wires and ready to go. When we tried to connect the battery the positive terminal started heating up ...
4
votes
1answer
3k views

96 Impreza ECU Pinout

I'm still working on getting this EG33 into a 96 Impreza. I have received some wiring harness diagrams, but am unable to match them to the ECU which is in the car. I'm wondering if what I have are the ...
1
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0answers
72 views

What type of pins do H13 headlight sockets use?

I'm changing out the headlights in my 2004 Jeep to something more modern that require H13 sockets. I purchased some OEM H13 pigtail connectors, but I would much rather prefer to cut off my H4 ...
4
votes
1answer
245 views

What is this covering used on the wires (blue and yellow). I found it on my KTM 390 Wiring Harness

I am making a custom wiring harness for automotive purposes and I have a KTM 390 Wiring Harness over here. Any car/bike wiring I have seen has this kind of black insulation. I need to know what it is ...
2
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1answer
253 views

2001 Jeep Wrangler wiring part for headlight switch

I'm wondering what this part is called? My headlights stopped working so I pulled the dash panel under the steering wheel and found this part was corroded and burnt. Please help me out! Headlights won'...
8
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2answers
5k views

How to remove a stuck (maybe melted) connector from the blower motor resistor

I have a 2003 Dodge Caravan in which the blower motor just blew out due to melted wiring at the connection of the blower motor cable and the blower motor resistor (picture attached). I've gotten ...
4
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1answer
300 views

Wire Lights '72 CB750

I'm working on the wiring of the indicators on my '72 Honda CB750. I don't have the manual and I've also had a really tough time finding the manual online (I've found a '73 but there seems to have ...
2
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1answer
782 views

Identifying chewed wires of my 2005 Ford Taurus

Some mice chewed up the wiring of my 2005 Ford Taurus. I have already replaced the spark plug wires, but I need help identifying the remaining wires and the parts to which they run. Here's the first ...
2
votes
1answer
1k views

Before reapair wiring - may Skoda Superb (2010) have an door impact sensor?

I have ab broken door wiring harness in my Skoda Superb (2010; 8004-AIT; German version). I think about to repair it myself. But I'm not shure if the Skoda has an door impact sensor. In this case I ...
3
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1answer
3k views

Bosch MAP Sensor Voltage issue

For those who think: TL;DR long story short: I want to measure the voltage output at certain temperature but do not get a signal. Details: I have a BOSCH MAP Sensor here (0281006108), it has 4 Pins:...
1
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0answers
149 views

Car stereo wiring for illumination

A friend gave me the Toyota PZ071 stereo head unit. He installed a different set in his car and the original head unit he gave to me. Unfortunately, the installer left the original connector harness ...
5
votes
2answers
147 views

Why would an Injector and the Idle Control Solenoid be linked?

I'm currently working on a 92 Subaru SVX wiring harness. I'm tearing it apart so I can use the engine side of the wiring harness to run the H6 EG33 engine I pulled out of the car. We are transplanting ...
7
votes
4answers
3k views

Is it ok to plug in battery backward to do compression test?

On engines with compression release valves, the recommended method for testing compression is turning the engine in reverse direction. I'm working on a lawn tractor (with a Kholer K241AQS), so there ...
18
votes
4answers
5k views

What can I do to combat wire embrittlement?

I live in a very hot climate where temperatures regularly touch 45 deg C and the heat in the engine bay area means that under-hood wires, especially the thinner ones, endure high levels of thermal ...
3
votes
1answer
515 views

Using the two blank fuse spots on my Prizm for accessories?

After months of driving with the cord of my dashcam hanging over the rearview mirror, I finally decided that it was time to hard-wire my dashcam. At the same time, I decided that it was also time to ...
3
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1answer
206 views

Need to repair connector for the Temp Sending connector on my Buick Nailhead engine

I'm starting to work through the things that need doing on my 1965 Buick Wildcat. At one time in the past, one or more rodents chewed through the wires on my Temperature Sending Unit. I've replaced ...
8
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2answers
464 views

Coolant Level Sensor Connector Replacement

I'm looking for a replacement male connector to fit this coolant level sensor from a 1989 VW Jetta. Finding replacement sensors is straightforward, but what does one do when repairing a missing ...
4
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1answer
384 views

Electrical reverse lights stay on

We recently purchased a restored 1971 chevelle ss. They did an excellent job. I just noticed that the reverse lights are always on and assume it something with the switch. Where might I look for the ...